Tea sieving machine with self-cleaning cam-lift screen
The self-cleaning cam-lift screen machine for tea sieving uses the cooperation of lifting and pushing components to achieve automatic cleaning and efficient sieving, solving the problems of screen clogging and low sieving efficiency, and improving tea quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN FENGDING TEMPLE TEA IND CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-30
AI Technical Summary
Existing tea sieving machines suffer from problems such as easy screen clogging, low sieving efficiency, and low precision. They also lack automatic dust removal methods, which affect tea quality and production efficiency.
The tea sieve machine adopts a self-cleaning cam-lifting screen. Through the coordinated work of the lifting component and the push-pull component, the filter component can achieve horizontal reciprocating movement and vertical vibration. Combined with the limiting component and the buffer component, it can achieve self-cleaning and efficient screening.
It improves screening efficiency, avoids clogging by dust and tea residue, extends equipment life, reduces energy consumption, and ensures the stability of screening results and the reliability of equipment operation.
Smart Images
Figure CN224423504U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of tea processing equipment, specifically to a self-cleaning cam-lifting screen machine for tea screening. Background Technology
[0002] Screening is a crucial step in tea processing, aiming to separate tea particles of different sizes and improve tea quality. However, existing tea screening machines have several problems that urgently need to be addressed. Firstly, during screening, dust and tea fragments easily adhere to the screen, causing blockages and affecting screening efficiency and tea quality. Traditional dust removal methods often require regular manual cleaning, which is not only labor-intensive but also interrupts screening operations, reducing production efficiency. Secondly, some screening machines use a single or inappropriate vibration method, failing to achieve effective tea screening and resulting in low screening accuracy.
[0003] Therefore, there is a need for a tea sieving machine that can automatically remove dust and improve sieving efficiency and accuracy to meet the growing demand of the tea processing industry and improve the overall quality and efficiency of tea processing. Summary of the Invention
[0004] In response to the above-mentioned technical problems, this application solves the problem that during the screening process of tea screening machines, the screen is easily clogged by dust and tea residue, and there is a lack of effective self-cleaning methods, which affects the screening efficiency and tea quality.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a tea sieving machine with a self-cleaning cam-lifting screen, comprising a frame, on which a push-pull assembly, a filtering assembly, a lifting assembly, and a limiting assembly are provided. The filtering assembly includes two horizontal plates, two side plates, and a filter plate. The horizontal plates and side plates are connected to each other at a 90-degree angle. The filter plate is fixedly installed on the support ends of the two horizontal plates and side plates. The lifting assembly includes a support plate, two rollers, a contact plate, and a top plate. The support plate is fixedly installed on the frame. Both rollers are fixedly installed on the support plate. The top plate is fixedly installed on the contact plate. The contact plate is fixedly installed on the side plate. The contact plate and the top plate are provided with arc-shaped surfaces that match the contact surfaces of the rollers.
[0006] To better realize this application, the push-pull assembly further includes a rotating shaft, a connecting rod, and a push rod. Two bearings are installed on the rotating shaft and are fixedly mounted on the frame. One end of the connecting rod is fixedly mounted on one end of the rotating shaft, and the other end of the connecting rod is rotatably connected to the end of the push rod near the rotating shaft. The end of the push rod away from the rotating shaft is rotatably mounted on a horizontal plate near the rotating shaft in the filter assembly.
[0007] To better realize this application, a motor is further fixedly mounted on the frame, a small pulley is fixedly mounted on the output end of the motor, a large pulley is fixedly mounted on the rotating shaft, and the large pulley and the small pulley are connected by belt drive.
[0008] To better realize this application, the limiting component further includes a protective plate and a buffer component. The protective plate is fixedly connected to the support surface of the side plate and also contacts the inner end surface of the support plate. The end of the protective plate away from the side plate is provided with a support surface. One end of the buffer component is slidably mounted on the support surface, and the other end of the buffer component is fixedly mounted on the outer end surface of the support plate. The buffer component has elasticity.
[0009] To better realize this application, the buffer assembly further includes an outer sleeve rod, an inner sleeve rod, and a spring. The outer sleeve rod includes a disc and an outer slide rod. The disc is fixedly mounted on the support plate. The disc and the outer slide rod are connected by a ball joint. The spring includes an inner slide rod and a sliding block. The sliding block is slidably connected to the support surface of the protective plate. The inner slide rod of the spring slides on the groove of the outer slide rod of the outer sleeve rod. An inner sleeve rod is fitted on both the inner and outer slide rods. The two ends of the inner sleeve rod are fixedly connected to the disc of the outer sleeve rod and the sliding block of the spring, respectively.
[0010] To better realize this application, further, an outer limiting plate is fixedly provided on the support surface of the protective plate. The outer limiting plate has an L-shaped structure, and an inner limiting plate is fixedly provided on this end of the protective plate. The protective plate, the inner limiting plate and the outer limiting plate form a limiting groove. The sliding block of the spring is provided with a sliding groove that matches the inner limiting plate and the outer limiting plate, and the sliding block of the spring slides on the limiting groove.
[0011] The technical solution provided in this application has the following advantages compared with the prior art:
[0012] 1: This application uses the lifting component and the push-pull component to work together to make the filter component vibrate up and down while moving horizontally back and forth, which effectively realizes the sieving of tea leaves. The vibration causes the tea leaves to fall through the filter plate holes, which improves the sieving efficiency and solves the problem of low efficiency in traditional sieving methods.
[0013] 2: This application utilizes the vibration of the filter assembly to achieve a self-cleaning function, shaking the dust adhering to the filter plate to the collection plate, preventing dust and tea residue from clogging the screen, ensuring the screen's permeability, maintaining the stability of the screening effect, eliminating the need for frequent manual screen cleaning, and saving labor costs.
[0014] 3: In this application, the rollers in the lifting assembly are matched with the arc-shaped surfaces of the contact plate and the top plate. This not only reduces wear caused by friction and extends the service life of the parts, but also reduces the resistance of the side plate reciprocating movement, reduces energy consumption, makes the filter assembly move more smoothly, and improves the overall operating efficiency of the equipment.
[0015] 4: This application is equipped with a limiting component. Through the cooperation of the protective plate and the buffer component, when the side plate of the filter component is lifted, the elasticity of the buffer component is used to control the height of the side plate, ensuring that the contact plate or top plate is always in contact with the roller, thus ensuring the stability of the equipment operation and avoiding the tea sieving and dust removal effect due to loss of contact.
[0016] 5: The outer sleeve rod of the buffer assembly in this application adopts a disc and outer sliding ball connection method, which can adapt to the lifting and tilting of the protective plate and side plate, further enhancing the adaptability and stability of the equipment during operation, and ensuring the stable and reliable operation of the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this application;
[0018] Figure 2 for Figure 1 Enlarged view of the local structure at point A;
[0019] Figure 3 This is a schematic diagram of the support plate of this application;
[0020] Figure 4 for Figure 3 Enlarged view of the local structure at point B;
[0021] Figure 5 This is a structural schematic diagram of the lifting component and the limiting component of this application;
[0022] Figure 6 This is a structural schematic diagram of the contact plate and top plate of this application;
[0023] Figure 7 This is a cross-sectional view of the protective plate of this application.
[0024] In the diagram: 101-Frame; 102-Motor; 103-Small pulley; 104-Large pulley; 105-Shaft; 106-Connecting rod; 107-Push rod; 108-Horizontal plate; 109-Side plate; 110-Filter plate; 111-Collection plate; 112-Roller; 113-Support plate; 114-Contact plate; 115-Top plate; 116-Protective plate; 117-Inner limit plate; 118-Outer limit plate; 119-Outer sleeve rod; 120-Inner sleeve rod; 121-Spring. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] like Figures 1 to 7 As shown, the tea sieving machine is a self-cleaning cam-lifting screen machine, including a frame 101. The frame 101 is equipped with a push-pull assembly, a filter assembly, a lifting assembly, and a limiting assembly. The filter assembly includes two horizontal plates 108, two side plates 109, and a filter plate 110. The horizontal plates 108 and side plates 109 are connected to each other at a 90-degree angle. The filter plate 110 is fixedly installed on the support ends of the two horizontal plates 108 and side plates 109. The lifting assembly includes a support plate 113, two rollers 112, a contact plate 114, and a top plate 115. The support plate 113 is fixedly installed on the frame 101. Both rollers 112 are fixedly installed on the support plate 113. The top plate 115 is fixedly installed on the contact plate 114. The contact plate 114 is fixedly installed on the side plate 109. The contact plate 114 and the top plate 115 are provided with arc-shaped surfaces that match the contact surfaces of the rollers 112.
[0028] Specifically, tea leaves are placed on the filter assembly. The filter assembly is moved back and forth on the frame 101 by the push-pull assembly. The filter assembly is moved up and down by contact with the lifting assembly, thereby vibrating the filter assembly. This sieves the tea leaves on the surface and removes the dust adhering to the filter assembly, causing them to fall onto the collection plate 111 for guidance and collection.
[0029] In use, the push-pull assembly controls the side plate 109 of the filter assembly to move the contact plate 114 and top plate 115 on two rollers 112. When the push-pull assembly is in the middle position of its reciprocating movement, the top plate 115 is located between the two 12s. When the push-pull assembly moves left or right, it moves the side plate 109, contact plate 114, and top plate 115 toward one of the rollers 112. That is, the arc-shaped surface of the contact plate 114 slides on the upper end surface of the roller 112. When one end of the top plate 115 contacts the roller 112, under the action of the inclined surface of the end face of the top plate 115, the roller 112 quickly pushes up that end of the top plate 115 through the inclined surface. Utilizing the rollers 112 on both sides of the filter assembly... Working together with the top plate 115, the top plate 115 lifts this end of the filter assembly, making the left and right ends of the filter assembly higher and lower. This causes the tea leaves on the filter plate 110 to move under gravity. When the push-pull assembly moves in the opposite direction, the top plate 115 quickly disengages from the roller 112, causing this end of the filter assembly to descend rapidly, restoring the filter assembly to the same height at both ends. Due to inertia, the tea leaves on the filter plate 110 slowly fall down. As they fall back onto the filter plate 110, the filter assembly continues to move under the action of the push-pull assembly, changing the contact position of the material. This process sieves the tea leaves and vibrates the filter assembly, causing the dust adhering to it to fall off.
[0030] Specifically, a support plate 113 is provided with two rollers 112. Each roller 112 is equipped with a mounting bracket and a rotating wheel. The mounting bracket is bolted to the support plate 113, and the rotating wheel rotates on the mounting bracket. The lower end faces of the contact plate 114 and the top plate 115 are provided with arc-shaped surfaces that match the shape of the rotating wheel of the roller 112. When the filter assembly reciprocates, the arc-shaped surface of the contact plate 114 on the side plate 109 moves on the rotating wheel of the roller 112 and drives the rotating wheel of the roller 112 to rotate on the mounting bracket through friction. This reduces wear caused by friction, improves the service life of the parts, reduces the resistance of the reciprocating movement of the side plate 109, reduces energy consumption, and improves the smoothness of movement.
[0031] like Figure 1 and Figure 2 As shown, the push-pull assembly includes a rotating shaft 105, a connecting rod 106, and a push rod 107. Two bearings are mounted on the rotating shaft 105 and are fixedly mounted on the frame 101. One end of the connecting rod 106 is fixedly mounted on one end of the rotating shaft 105, and the other end of the connecting rod 106 is rotatably connected to the end of the push rod 107 near the rotating shaft 105. The end of the push rod 107 away from the rotating shaft 105 is rotatably mounted on the horizontal plate 108 near the rotating shaft 105 in the filter assembly.
[0032] Specifically, the power source drives the rotating shaft 105 to rotate on the frame 101. The bearings maintain the smooth rotation of the rotating shaft 105. When the rotating shaft 105 rotates, it drives the inner end of the connecting rod 106 to rotate, which in turn drives the connecting rod 106 to rotate around the axis of the rotating shaft 105. Then, the outer end of the connecting rod 106 drives the end of the push rod 107 near the rotating shaft 105 to move with the outer end of the connecting rod 106, that is, to rotate around the axis of the rotating shaft 105. The end of the push rod 107 near the filter assembly reciprocates within a certain angle range on the horizontal plate 108. The movement of the push rod 107 near the end of the rotating shaft 105 on the horizontal plane drives the filter assembly to change its position on the horizontal plane, realizing the reciprocating movement of the filter assembly. This shakes the tea leaves and dust, allowing them to fall through the filter holes of the filter plate 110 and be guided out and collected by the collection plate 111.
[0033] like Figure 2 As shown, a motor 102 is fixedly mounted on the frame 101, a small pulley 103 is fixedly mounted on the output end of the motor 102, and a large pulley 104 is fixedly mounted on the rotating shaft 105. The large pulley 104 and the small pulley 103 are connected by belt drive.
[0034] In use, the motor 102 is started by the control unit, and the rotating shaft 105 is driven to rotate on the frame 101 by the belt drive between the small pulley 103 and the large pulley 104. Then the rotating shaft 105 drives the push rod 107 through the connecting rod 106, so that the push rod 107 controls the reciprocating movement of the filter assembly.
[0035] like Figure 3 and Figure 7 As shown, the limiting component includes a protective plate 116 and a buffer component. The protective plate 116 is fixedly connected to the support surface of the side plate 109. The protective plate 116 also contacts the inner end face of the support plate 113. A support surface is provided at one end of the protective plate 116 away from the side plate 109. One end of the buffer component is slidably mounted on the support surface, and the other end of the buffer component is fixedly mounted on the outer end face of the support plate 113. The buffer component has elasticity.
[0036] Specifically, by cooperating with the support surface of the buffer assembly and the protective plate 116, when the side plate 109 of the filter assembly is lifted, the lower end of the buffer assembly is pushed by the support surface of the protective plate 116, and the support plate 113 compresses the buffer assembly. The elasticity of the buffer assembly is used to control the height of the side plate 109, so that the contact plate 114 or the top plate 115 can always maintain contact with the roller 112 during the process of changing the height of the side plate 109, thus preventing the filter assembly, the contact plate 114 and the top plate 115 from detaching from the roller 112 and affecting the treatment effect of tea and dust.
[0037] like Figure 5 and Figure 7 As shown, the buffer assembly includes an outer sleeve rod 119, an inner sleeve rod 120, and a spring 121. The outer sleeve rod 119 includes a disc and an outer sliding rod. The disc is fixedly mounted on the support plate 113. The disc and the outer sliding rod of the outer sleeve rod 119 are connected by a ball joint. The spring 121 includes an inner sliding rod and a sliding block. The sliding block is slidably connected to the support surface of the protective plate 116. The inner sliding rod of the spring 121 slides on the groove of the outer sliding rod of the outer sleeve rod 119. An inner sleeve rod 120 is fitted together on the inner and outer sliding rods. The two ends of the inner sleeve rod 120 are fixedly connected to the disc of the outer sleeve rod 119 and the sliding block of the spring 121, respectively.
[0038] Specifically, when the buffer assembly is compressed, the inner slide rod on the spring 121 slides on the groove of the outer slide rod of the outer sleeve 119, and the inner sleeve rod 120 sleeved on the outer and inner slide rods is compressed by the sliding block of the spring 121, so that the elastic force of the inner sleeve rod 120 can be used for subsequent reset and buffering. The disc of the outer sleeve rod 119 and the ball of the outer slide rod are connected, so that when one end of the side plate 109 is lifted, the protective plate 116 pushes the buffer assembly at that end, while the other end remains stationary, so that the outer slide rod of the outer sleeve rod 119 at that end rotates on the disc and tilts to a certain extent, thereby adapting to the lifting of the protective plate 116 and the side plate 109. In this state, the protective plate 116 rotates around the roller 112 at the other end.
[0039] like Figure 5 and Figure 7 As shown, an outer limiting plate 118 is fixedly installed on the supporting surface of the protective plate 116. The outer limiting plate 118 has an L-shaped structure. An inner limiting plate 117 is fixedly installed on this end of the protective plate 116. The protective plate 116, the inner limiting plate 117 and the outer limiting plate 118 form a limiting groove. The sliding block of the spring 121 is provided with a sliding groove that matches the inner limiting plate 117 and the outer limiting plate 118. The sliding block of the spring 121 slides on the limiting groove.
[0040] Specifically, the cross-section of the sliding block of spring 121 is as follows: Figure 7 As shown, the cross-section is a rotating I-shape. The crossbars of the inner limiting plate 117 and the outer limiting plate 118 are inserted into the concave groove of the I-shaped structure. Thus, when the side plate 109 moves, the inner limiting plate 117 and the outer limiting plate 118 are driven to slide on the groove of the sliding block of the spring 121 through the protective plate 116. The groove is used to limit the inner limiting plate 117 and the outer limiting plate 118, thereby limiting the position of the protective plate 116 and the side plate 109.
[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A cam-elevating type screen machine for self-cleaning of a tea leaf screening machine, characterized in that, The system includes a frame (101), on which a push-pull assembly, a filter assembly, a lifting assembly, and a limiting assembly are provided. The filter assembly includes two horizontal plates (108), two side plates (109), and a filter plate (110). The horizontal plates (108) and the side plates (109) are connected to each other at a 90-degree angle. The filter plate (110) is fixedly installed on the support ends of the two horizontal plates (108) and the side plates (109). The lifting assembly includes a support plate (113) and two rollers. The machine includes a wheel (112), a contact plate (114), and a top plate (115). The support plate (113) is fixedly mounted on the frame (101). Both rollers (112) are fixedly mounted on the support plate (113). The top plate (115) is fixedly mounted on the contact plate (114). The contact plate (114) is fixedly mounted on the side plate (109). The contact plate (114) and the top plate (115) are provided with arc-shaped surfaces that match the contact surfaces of the rollers (112).
2. The self-cleaning cam-ejecting screen machine for tea leaf screening machine according to claim 1, wherein, The push-pull assembly includes a rotating shaft (105), a connecting rod (106), and a push rod (107). Two bearings are mounted on the rotating shaft (105), which are fixedly mounted on the frame (101). One end of the connecting rod (106) is fixedly mounted on one end of the rotating shaft (105), and the other end of the connecting rod (106) is rotatably connected to the end of the push rod (107) near the rotating shaft (105). The end of the push rod (107) away from the rotating shaft (105) is rotatably mounted on a horizontal plate (108) near the rotating shaft (105) in the filter assembly.
3. The self-cleaning cam-elevating screen machine for tea leaf screening according to claim 2, characterized in that, A motor (102) is fixedly mounted on the frame (101). A small pulley (103) is fixedly mounted on the output end of the motor (102). A large pulley (104) is fixedly mounted on the rotating shaft (105). The large pulley (104) and the small pulley (103) are connected by belt drive.
4. The self-cleaning cam-ejecting screen machine for tea leaf screening machine according to claim 1, wherein, The limiting component includes a protective plate (116) and a buffer component. The protective plate (116) is fixedly connected to the support surface of the side plate (109). The protective plate (116) also contacts the inner end face of the support plate (113). A support surface is provided at the end of the protective plate (116) away from the side plate (109). One end of the buffer component is slidably installed. On the support surface, the other end of the buffer assembly is fixedly installed on the outer end face of the support plate (113), and the buffer assembly has elasticity.
5. The self-cleaning cam-elevating screen machine for tea leaf grading according to claim 4, characterized in that, The buffer assembly includes an outer sleeve rod (119), an inner sleeve rod (120), and a spring (121). The outer sleeve rod (119) includes a disc and an outer slide rod. The disc is fixedly mounted on the support plate (113). The disc and the outer slide rod of the outer sleeve rod (119) are connected by a ball joint. The spring (121) includes an inner slide rod and a sliding block. The sliding block is slidably connected to the support surface of the protective plate (116). The inner slide rod of the spring (121) slides on the groove of the outer slide rod of the outer sleeve rod (119). An inner sleeve rod (120) is fitted on both the inner and outer slide rods. The two ends of the inner sleeve rod (120) are fixedly connected to the disc of the outer sleeve rod (119) and the sliding block of the spring (121), respectively.
6. The self-cleaning cam-elevating screen machine for tea leaf grading according to claim 5, characterized in that, The support surface of the protection plate (116) is fixedly provided with an outer limiting plate (118), the outer limiting plate (118) is of L-shaped structure, the end of the protection plate (116) is fixedly provided with an inner limiting plate (117), the protection plate (116), the inner limiting plate (117) and the outer limiting plate (118) form a limiting groove, the sliding block of the spring (121) is provided with a sliding groove matched with the inner limiting plate (117) and the outer limiting plate (118), and the sliding block of the spring (121) slides on the limiting groove.